Folding structure of upper folding door of hangar

Abstract

The utility model discloses a hangar upper folding door folding structure which comprises a folding structure body, the folding structure body comprises a main frame, a winch is fixedly installed at the top end of the main frame through bolts, a steel wire rope is wound on the outer surface of the winch through a winding drum, a folding door frame is arranged in the main frame, and the folding door frame is connected with the winding drum. Three distance-keeping steel cables are fixed on the folding door frame at equal intervals; by designing the lubricating mechanism, when the steel wire rope is wound, lubricating oil in the oil storage tank enters the outer surface of the ball through the oil injection through hole in the bottom end, when the outer surface of the ball is fully soaked with the lubricating oil, the ball makes contact with the outer surface of the steel wire rope again for oil injection lubricating treatment, and oil injection lubricating treatment is conveniently conducted on the steel wire rope when the steel wire rope is wound; when the steel wire rope is wound on the surface of the winding drum and moves on the surface of the fixed pulley, friction damage is not prone to occurring, winding and folding operation is smooth, the convenience of lubricating treatment of the steel wire rope when the folding structure is folded on the folding door on the hangar is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of the folding structure of an upper folding door, and particularly relates to a folding structure of an upper folding door for an aircraft hangar. Background Art

[0002] An aircraft hangar is a large-span single-story building for repairing aircraft and is the main building in the aircraft maintenance area. When constructing an aircraft hangar, an upper folding door needs to be installed. Usually, the upper folding door is folded through a folding structure. The existing folding structure is a device used for folding and winding the upper folding door of the aircraft hangar. When in use, the device can facilitate the smooth folding and guiding of the upper folding door, and at the same time, it is convenient to wind and fold the steel wire rope during folding, improving the convenience of lubricating the steel wire rope when the folding structure folds the upper folding door of the aircraft hangar and extending the service life.

[0003] When the existing folding structure is installed on the upper folding door of the aircraft hangar and used for folding the flexible folding door, the winch winds the steel wire rope on the fixed pulley to move, driving the folding door frame to contract, so as to fold, open or close the upper folding door of the aircraft hangar. Therefore, when the steel wire rope is wound on the winding drum for a long time and moves on the fixed pulley, it is not convenient for lubrication treatment. The long-term winding and driving of the steel wire rope are likely to cause certain friction, and in severe cases, the steel wire rope is severely damaged by friction, significantly reducing the service life, thus affecting the convenience of lubricating the steel wire rope when the folding structure folds the upper folding door of the aircraft hangar. For this reason, the utility model provides a folding structure of an upper folding door for an aircraft hangar. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a folding structure of an upper folding door for an aircraft hangar to solve the problem that when the folding structure is installed on the upper folding door of the aircraft hangar and used for folding the flexible folding door, it is not convenient for lubrication treatment when the steel wire rope is wound on the winding drum for a long time and moves on the fixed pulley, resulting in certain friction, and in severe cases, the steel wire rope is severely damaged by friction, significantly reducing the service life, thus affecting the convenience of lubricating the steel wire rope when the folding structure folds the upper folding door of the aircraft hangar as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A folding structure of an upper folding door for an aircraft hangar, including a folding structure main body. The folding structure main body includes a main frame. A winch is fixedly installed at the top end of the main frame through bolts. A steel wire rope is wound on the outer surface of the winch through a winding drum. A folding door frame is arranged inside the main frame. Three equal-distance stay cables are fixedly installed on the folding door frame at equal intervals. A guide groove is formed inside the inner side of the main frame. A guide wheel rolls at the end of the folding door frame. The guide wheel is in contact with the inside of the guide groove. The folding structure main body is further provided with:

[0006] Lubrication mechanism, and the lubrication mechanism includes a sliding connection component arranged on the outer surface of the wire rope at the top of the front surface of the main frame. An oil storage component is arranged at the inner edge of the sliding connection component, and an oil injection and lubrication component is arranged at the bottom edge of the oil storage component;

[0007] Cleaning mechanism, and the cleaning mechanism includes a fixed connection component arranged at the end of the folding door frame under the lower surface of the guide wheel. A cleaning component is arranged at the end of the fixed connection component.

[0008] Preferably, the top of the folding door frame is fixed to the inner top of the main frame by bolts. A lower bottom plate is fixedly installed at the bottom of the folding door frame by bolts. Fixed pulleys are installed at both ends of the lower bottom plate. The outer surface of the wire rope contacts the inner surface of the fixed pulley. The end of the wire rope passes through the fixed pulley and extends to the other side of the inner top of the main frame and is fixedly installed by bolts.

[0009] Preferably, the sliding connection component includes a chute opened on one side of the top of the main frame. A slider slides inside the chute. A sleeve is welded and fixed to the surface of the main frame at the end of the slider. The wire rope passes through the inside of the sleeve.

[0010] Preferably, the oil storage component includes an oil storage tank opened inside the sleeve. An oil injection port is arranged at the top of one side of the oil storage tank. A sealing cover is screwed and rotated at the end of the oil injection port.

[0011] Preferably, the oil injection and lubrication component includes a mounting plate one fixedly installed by screws at the bottom edge of the inner surface of the oil storage tank. A ball rolls inside the mounting plate one. An oil injection through hole is opened inside the mounting plate one on one side of the ball. The surface of the ball contacts the outer surface of the wire rope.

[0012] Preferably, the fixed connection component includes two fixed blocks welded and fixed to the lower surface of the end of the folding door frame. A connecting plate is fixedly installed on the lower surface of the two fixed blocks by screws.

[0013] Preferably, the cleaning component includes a buffer groove opened inside the connecting plate. A mounting plate two is limited inside the buffer groove. An elastic plate is arranged at the connection between the inner surface of the mounting plate two and the inner surface of the buffer groove. A cleaning brush is fixedly installed on the outer surface of the mounting plate two. The end of the cleaning brush contacts the inner surface of the guide groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] By designing a lubricating mechanism, when the steel wire rope is wound up, the lubricating oil inside the oil storage tank enters the outer surface of the ball through the oil injection through hole at the bottom end. When the outer surface of the ball is filled with lubricating oil, it comes into contact with the outer surface of the steel wire rope again for oil injection lubrication treatment, which facilitates the oil injection lubrication treatment of the steel wire rope during winding. When the steel wire rope is wound on the surface of the winding drum and moves on the surface of the fixed pulley, it is not easy to generate frictional damage, and the winding and folding operations are carried out smoothly, improving the convenience of lubricating the steel wire rope during the folding of the folding structure main body on the hangar overlay door, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 For the present invention Figure 1 is an enlarged structural diagram of part A in the present invention;

[0018] Figure 3 For the present invention Figure 2 is an enlarged structural diagram of part C in the present invention;

[0019] Figure 4 is a partial top view structural diagram of the steel wire rope, sleeve and main frame of the present invention;

[0020] Figure 5 For the present invention Figure 1 is an enlarged structural diagram of part B in the present invention;

[0021] Figure 6 is a structural diagram of the connecting plate, mounting plate II and cleaning brush of the present invention;

[0022] In the figure: 100, folding structure main body; 101, main frame; 102, winch; 103, steel wire rope; 1031, chute; 1032, sleeve; 1033, oil storage tank; 1034, oil injection port; 1035, mounting plate I; 1036, oil injection through hole; 1037, ball; 1038, slider; 104, fixed pulley; 105, lower bottom plate; 106, folding overlay door frame; 107, distance-keeping steel cable; 108, guide groove; 109, guide wheel; 1091, fixing block; 1092, connecting plate; 1093, elastic plate; 1094, mounting plate II; 1095, cleaning brush; 1096, buffer groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: an upper-folded door folding structure for an aircraft hangar, including a folding structure main body 100. The folding structure main body 100 includes a main frame 101. A winch 102 is fixedly installed at the top end of the main frame 101 through bolts. A steel wire rope 103 is wound around the outer surface of the winch 102 through a winding drum. A folding door frame 106 is arranged inside the main frame 101. Three distance-keeping steel cables 107 are fixedly arranged at equal intervals on the folding door frame 106. A lower bottom plate 105 is fixedly installed at the bottom end of the folding door frame 106 through bolts. Fixed pulleys 104 are installed at both ends of the lower bottom plate 105. The outer surface of the steel wire rope 103 is in contact with the inner surface of the fixed pulley 104. The end of the steel wire rope 103 passes through the fixed pulley 104 and extends to the other side of the inner top end of the main frame 101 and is fixedly installed through bolts. The folding structure main body 100 is fixedly installed at a certain position on the aircraft hangar through the main frame 101. After the folding structure main body 100 is fixedly installed, a folding door is installed on the outer surface of the folding door frame 106. When folding and using, the winch 102 operates to drive the winding drum and the steel wire rope 103 to wind. When the steel wire rope 103 winds, it pulls the lower bottom plate 105 through the fixed pulley 104. When the lower bottom plate 105 moves upward, it drives the folding door frame 106 to fold.

[0025] A guiding groove 108 is formed inside the main frame 101. A guiding wheel 109 rolls at the end of the folding door frame 106. The guiding wheel 109 is in contact with the inside of the guiding groove 108. When the folding door frame 106 folds, the end drives the guiding wheel 109 to roll inside the guiding groove 108 to guide the folding door frame 106 to move and fold stably. Thus, the folding door frame 106 folds to fold or open the folding door for use. The following is also provided on the folding structure main body 100:

[0026] Lubrication mechanism, and this lubrication mechanism includes a sliding connection component arranged on the outer surface of the wire rope 103 at the top of the front surface of the main frame 101. An oil storage component is arranged at the inner edge of the sliding connection component, and an oil injection and lubrication component is arranged at the bottom edge of the oil storage component. When the folding structure main body 100 is in use, during the winding of the wire rope 103 and the internal movement of the fixed pulley 104, the outer surface of the wire rope 103 can be lubricated through the lubrication mechanism, which is not prone to friction damage, and the winding and folding operations can be carried out smoothly, improving the convenience of lubricating the wire rope 103 during the folding of the folding structure main body 100 on the hangar stacking door, and extending the service life.

[0027] In order to facilitate the movement of the sleeve 1032 of the wire rope 103 during winding through the sliding connection component, in this embodiment, preferably, the sliding connection component includes a sliding groove 1031 opened on one side of the top of the main frame 101. A slider 1038 slides inside the sliding groove 1031. A sleeve 1032 is fixedly welded to the surface of the main frame 101 at the end of the slider 1038. The wire rope 103 passes through the inside of the sleeve 1032. When the wire rope 103 is wound and moved, it can drive the slider 1038 to slide inside the sliding groove 1031, and the sliding groove 1031 follows the movement of the wire rope 103.

[0028] In order to facilitate filling the inside of the oil storage tank 1033 with lubricating oil through the oil storage component and facilitate oil injection and lubrication treatment, in this embodiment, preferably, the oil storage component includes an oil storage tank 1033 opened inside the sleeve 1032. An oil injection port 1034 is arranged at the top of one side of the oil storage tank 1033. A sealing cover is screwed and rotated at the end of the oil injection port 1034, facilitating filling the inside of the oil storage tank 1033 with oil through the oil injection port 1034, and rotating the sealing cover to seal and fix the oil injection port 1034.

[0029] In order to facilitate oil injection and lubrication treatment of the outer surface of the wire rope 103 through the oil injection and lubrication component and not be prone to friction damage, in this embodiment, preferably, the oil injection and lubrication component includes a first mounting plate 1035 fixedly installed at the bottom edge of the inner surface of the oil storage tank 1033 by screws. A ball 1037 rolls inside the first mounting plate 1035. An oil injection through hole 1036 is opened inside the first mounting plate 1035 on one side of the ball 1037. The surface of the ball 1037 contacts the outer surface of the wire rope 103. When the wire rope 103 slides inside the sleeve 1032, the lubricating oil inside the oil storage tank 1033 enters the outer surface of the ball 1037 through the bottom oil injection through hole 1036. When the outer surface of the ball 1037 is filled with lubricating oil, it contacts the outer surface of the wire rope 103 again for oil injection and lubrication treatment, facilitating oil injection and lubrication treatment when the wire rope 103 is wound, and the wire rope 103 is not prone to friction damage when it is wound on the winding drum surface and moves on the surface of the fixed pulley 104.

[0030] Cleaning mechanism, and the cleaning mechanism includes a fixed connection component arranged at the end of the folding door frame 106 and located on the lower surface of the guide wheel 109. A cleaning component is arranged at the end of the fixed connection component. When the folding structure main body 100 folds the upper folding door on the hangar, the guide wheel 109 drives the cleaning mechanism to slide and clean inside the guide groove 108 during the guiding movement, smoothly guiding and rolling, not easily obstructing the guide wheel 109, and improving the convenience of cleaning the inside of the guide groove 108 and the smoothness of guiding during the folding process of the folding door when the folding structure main body 100 is installed on the hangar.

[0031] In order to facilitate the installation of the cleaning brush 1095 through the fixed connection component and make it convenient for installation and use, in this embodiment, preferably, the fixed connection component includes two fixing blocks 1091 welded and fixed to the lower surface of the end of the folding door frame 106. A connecting plate 1092 is fixed to the lower surfaces of the two fixing blocks 1091 by screws. The connecting plate 1092 is fixedly installed by the fixing blocks 1091, which is convenient for installation and use.

[0032] In order to facilitate the internal cleaning of the guide groove 108 by moving the end of the folding door frame 106 through the cleaning component, in this embodiment, preferably, the cleaning component includes a buffer groove 1096 opened inside the connecting plate 1092. An installation plate two 1094 is limited inside the buffer groove 1096. An elastic plate 1093 is arranged at the connection between the inner surface of the installation plate two 1094 and the inner surface of the buffer groove 1096, facilitating elastic connection of the installation plate two 1094 inside the buffer groove 1096 through the elastic plate 1093 for elastic pressing. A cleaning brush 1095 is fixed to the outer surface of the installation plate two 1094 by screws. The end of the cleaning brush 1095 contacts the inner surface of the guide groove 108. When the installation plate two 1094 is elastically connected, the cleaning brush 1095 is elastically pressed against the inner surface of the guide groove 108, so as to perform cleaning during the guiding movement.

[0033] The working principle and usage process of the present utility model: For this folding structure of the upper folding door on the hangar, during use, first, the folding structure main body 100 is fixedly installed at a certain position on the hangar through the main frame 101. After the folding structure main body 100 is fixedly installed, a folding door is installed on the outer surface of the folding door frame 106. When folding and using, the winch 102 operates to drive the take-up reel and the wire rope 103 to wind. When the wire rope 103 winds, it pulls the lower bottom plate 105 through the fixed pulley 104. When the lower bottom plate 105 moves upward, it drives the folding door frame 106 to fold. When the folding door frame 106 folds, the end drives the guide wheel 109 to roll inside the guide groove 108 to stably guide the movement and folding of the folding door frame 106, so as to fold the folding door frame 106 to fold or open the folding door for use;

[0034] Then, when the folding structure main body 100 is installed and the folding door is folded, when the folding door frame 106 folds and drives the guide wheel 109 to be guided inside the guide groove 108, at this time, due to the deformation of the elastic plate 1093, the second mounting plate 1094 is elastically connected to the cleaning brush 1095 until the cleaning brush 1095 contacts the inner surface of the guide groove 108. And when the folding door frame 106 drives the guide wheel 109 to roll, the cleaning brush 1095 contacts the inner surface of the guide groove 108 for cleaning. Moreover, when dust and dirt fall into the guide groove 108, it is convenient to clean during the guiding movement, ensuring smooth guiding and rolling, not easily hindering the guide wheel 109, and improving the convenience of cleaning the inside of the guide groove 108 and the smoothness of guiding during the folding of the folding door on the folding structure main body 100 installed in the hangar.

[0035] Finally, before the folding structure main body 100 winds up the steel wire rope 103 during the folding operation, lubricating oil is filled into the inside of the oil storage tank 1033 through the oil filling port 1034. When the steel wire rope 103 is wound up, at this time, the lubricating oil inside the oil storage tank 1033 enters the outer surface of the ball 1037 through the oil injection through hole 1036 at the bottom end. When the outer surface of the ball 1037 is saturated with lubricating oil, it contacts the outer surface of the steel wire rope 103 again for oil injection and lubrication treatment, facilitating the oil injection and lubrication treatment of the steel wire rope 103 during winding. When the steel wire rope 103 is wound and moved on the surface of the winding drum and the surface of the fixed pulley 104, it is not easy to cause frictional damage, and the folding operation can be smoothly wound up. When the steel wire rope 103 is wound and moved, it is convenient to drive the slider 1038 to slide inside the chute 1031, and the chute 1031 moves along with the steel wire rope 103, improving the convenience of lubricating the steel wire rope 103 during the folding of the folding door on the folding structure main body 100 in the hangar and extending its service life.

[0036] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding structure for an overhead door on a hangar, comprising a folding structure main body (100). The folding structure main body (100) includes a main frame (101). A hoist (102) is fixedly installed at the top of the main frame (101) by bolts. A steel wire rope (103) is wound around the outer surface of the hoist (102) by a winding drum. A folding overhead door frame (106) is arranged inside the main frame (101). Three distance-keeping steel cables (107) are fixedly arranged at equal intervals on the folding overhead door frame (106). A guide groove (108) is formed on the inner side of the main frame (101). A guide wheel (109) rolls at the end of the folding overhead door frame (106). The guide wheel (109) is in contact with the inside of the guide groove (108). It is characterized in that: The folding structure main body (100) is further provided with: a lubricating mechanism, and the lubricating mechanism includes a sliding connection component arranged on the outer surface of the steel wire rope (103) at the top end of the front surface of the main frame (101). An oil storage component is arranged at the inner edge of the sliding connection component, and an oil injection and lubrication component is arranged at the bottom edge of the oil storage component; a cleaning mechanism, and the cleaning mechanism includes a fixed connection component arranged at the end of the folding door frame (106) under the lower surface of the guide wheel (109). A cleaning component is arranged at the end of the fixed connection component.

2. The folding structure of the overhead door on the hangar according to claim 1, wherein: The top end of the folding door frame (106) is fixed to the inner top end of the main frame (101) by bolts. A lower bottom plate (105) is fixedly installed at the bottom end of the folding door frame (106) by bolts. Fixed pulleys (104) are installed at both ends of the lower bottom plate (105). The outer surface of the steel wire rope (103) is in contact with the inner surface of the fixed pulley (104). The end of the steel wire rope (103) passes through the fixed pulley (104) and extends to the other side of the inner top end of the main frame (101) and is fixedly installed by bolts.

3. The folding structure of the overhead door on the hangar according to claim 1, characterized in that: The sliding connection component includes a chute (1031) opened on one side of the top end of the main frame (101). A slider (1038) slides inside the chute (1031). A sleeve (1032) is welded and fixed to the surface of the main frame (101) at the end of the slider (1038). The steel wire rope (103) passes through the inside of the sleeve (1032).

4. The folding structure of the overhead door on the hangar according to claim 3, characterized in that: The oil storage component includes an oil storage tank (1033) opened inside the sleeve (1032). An oil injection port (1034) is arranged at the top end of one side of the oil storage tank (1033). A sealing cover is screwed and rotated at the end of the oil injection port (1034).

5. The folding structure of the upper folding door of an aircraft hangar according to claim 4, wherein: The oil injection and lubrication component includes a mounting plate one (1035) fixedly installed by screws at the bottom edge of the inner surface of the oil storage tank (1033). A ball (1037) rolls inside the mounting plate one (1035). An oil injection through hole (1036) is opened inside the mounting plate one (1035) on one side of the ball (1037). The surface of the ball (1037) is in contact with the outer surface of the steel wire rope (103).

6. The folding structure of the upper folding door of an aircraft hangar according to claim 1, characterized in that: The fixed connection component includes two fixing blocks (1091) welded and fixed to the lower surface of the end of the folding door frame (106). A connecting plate (1092) is fixed to the lower surface of the two fixing blocks (1091) by screws.

7. A folding structure of an overhanging door on an aircraft hangar according to claim 6, characterized in that: The cleaning component includes a buffer groove (1096) opened inside the connecting plate (1092). A mounting plate two (1094) is limited inside the buffer groove (1096). An elastic plate (1093) is arranged at the connection between the inner surface of the mounting plate two (1094) and the inner surface of the buffer groove (1096). A cleaning brush (1095) is fixed to the outer surface of the mounting plate two (1094) by screws. The end of the cleaning brush (1095) is in contact with the inner surface of the guide groove (108).

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